code: def format_hsl(hsl_color):
      # type: (_HSL_COLOR) -> str
      """Format hsl color as css color string."""
      hue, saturation, lightness = hsl_color
      return "hsl({}, {:.2%}, {:.2%})".format(
          hue, saturation, lightness
      )
  
imports: from __future__ import absolute_import
  from itertools import groupby
  from typing import List, Optional, Tuple
  import numpy
  from jinja2 import Environment, PackageLoader
  from eli5 import _graphviz
  from eli5.base import Explanation, TargetExplanation, FeatureWeights, FeatureWeight
  from eli5.utils import max_or_0
  from .utils import format_signed, format_value, format_weight, has_any_values_for_weights, replace_spaces, should_highlight_spaces
  from .None import fields
  from .features import FormattedFeatureName
  from .trees import tree2text
  from .text_helpers import prepare_weighted_spans, PreparedWeightedSpans
label_desc: Use image node_id 8 for calling a global function with example usage: format_hsl(hsl_color) and returns: str